3656460 has 48 divisors (see below), whose sum is σ = 10332000. Its totient is φ = 966144.

The previous prime is 3656453. The next prime is 3656467. The reversal of 3656460 is 646563.

It is an interprime number because it is at equal distance from previous prime (3656453) and next prime (3656467).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (3656467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8736 + ... + 9144.

It is an arithmetic number, because the mean of its divisors is an integer number (215250).

Almost surely, 2^3656460 is an apocalyptic number.

3656460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3656460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5166000).

3656460 is an abundant number, since it is smaller than the sum of its proper divisors (6675540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3656460 is a wasteful number, since it uses less digits than its factorization.

3656460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570 (or 568 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 3656460 is about 1912.1872293267. The cubic root of 3656460 is about 154.0589530855.

The spelling of 3656460 in words is "three million, six hundred fifty-six thousand, four hundred sixty".